例句 /

From the soil of the high pectin,a strain which has high ability to break up pectin was selected.

From the soil of the high pectin,a strain which has high ability to break up pectin was selected.

从富含果胶质的果园的土壤中,通过对初筛的定性研究,对几种筛选培养基的比对选择和对复筛时Dp/D c值的测定,确定出一系列有效可行的筛选方法,从而获得一株能较强分解果胶质能力的菌株,然后对该菌株进行了初步的形态观察和鉴定。